OE/QEM Interchange Numbers: 54500AM601, 54501AM601, MS30164, 54500AM600, 40014AL550, 40015AL850, 54500AM602, 54501AM602, SK521604, WC121604, 54500AL500 MS30163, 54501AM600, SK521603, WC121603, 54501AL500 Compatible Cars: Compatible with 2003-2004 Infiniti G35 RWD Models Only; Compatible with 2003-2004 Nissan 350Z Quality Specifications: HAWK BROTHER uses strict manufacturing standards and is electroplated to enhance corrosion protection and extend control arm life. We add lubricant to the product for smooth installation. All control arms are rigorously tested to provide a reliable replacement: stable performance and high reliability Regular Replacement: Regular replacement of your car suspension kit will improve your driving comfort. Control arms with silicone bushings can effectively reduce road noise and improve safe driving. Not only will your car be safer on the road, but it will also make your driving experience more pleasant and smooth Note: Please check your model in the Amazon accessories filtering system before placing an order. Pay attention to the year, brand, and model. At the same time, please check the compatibility label, including the remarks. If you are not sure whether it is applicable, please feel free to send us your vehicle identification number (VIN) The Front Suspension Complete Set ( brazo de control kit de suspensión delantera) Includes: 1x Front Lower Forward Control Arm - Driver Side - MS30163 1x Front Lower Forward Control Arm - Passenger Side - MS30164